Crowns
Severe tooth decay can reach a point where a dental filling is insufficient to maintain the
tooth's integrity. When left untreated, such teeth can deteriorate even further. In such cases,
dentists turn to dental crowns as a solution to safeguard what remains of the tooth.
Dental crowns represent a crucial restorative option in our dental services. They can rescue a
tooth that is fractured or decayed by holding it together and shielding it against additional
damage. Additionally, crowns can serve as an aesthetically pleasing replacement for an unsightly
tooth.
A dental crown, also known as a cap, is a versatile solution not only for protecting damaged
teeth but also for concealing discoloration, correcting misshapen teeth, or covering a dental
implant. Crowns not only enhance the appearance of your tooth but also strengthen it.
Once in place, a dental crown functions just like a natural tooth. Therefore, you should maintain
it with the same care. Continue to brush and floss your crowned tooth regularly, and make sure
to attend regular checkups with your dentist for ongoing maintenance and care.
What Is A Dental Crown?
In the field of dentistry, a crown, often referred to as a cap, is an artificial tooth
designed to fit over and cover a damaged or compromised natural tooth. These crowns are
individually crafted to blend seamlessly with your existing smile and are constructed to
offer long-lasting durability. Crowns play a crucial role in various dental conditions, and
they are sometimes necessary following specific dental procedures. For instance, a tooth
that has undergone a root canal or received a large filling may become weakened and
susceptible to cracking or breaking, making the application of a crown necessary to ensure
protection. Additionally, crowns can serve cosmetic purposes, enhancing the appearance of a
tooth that is misshapen or discolored.
There exist several types of crowns, each distinguished by its appearance and strength
characteristics.
Metal Crowns
Metal crowns are comprised of gold or other alloys (mixtures). They are the most durable type of
crown available & the least likely to wear down your opposing teeth. The downside of metal
crowns is that they do not blend into your smile, so you may not want them on your most visible
teeth.
Ceramic Crowns
Ceramic crowns are crafted from porcelain and are primarily chosen for their exceptional
aesthetic properties. These crowns can be precisely matched to the color of your natural teeth,
making them an excellent choice for restoring your front teeth, where appearance is a top
priority. However, it's important to note that ceramic crowns are the least durable among the
available crown options. Porcelain can be somewhat fragile, which makes it less suitable for
replacing teeth that endure substantial stress, particularly molars. Additionally, ceramic
crowns can be abrasive on the opposing teeth, which is another factor to consider when choosing
the right type of crown for your dental needs.
Porcelain-Fused-to-Metal Crowns
Porcelain-Fused-to-Metal (PFM) crowns represent a hybrid that combines the features of ceramic
and metal alloy crowns. These crowns feature a porcelain exterior for aesthetics and a metal
interior for added strength. By offering a blend of both aesthetics and durability, PFM crowns
aim to provide the advantages of both materials. However, they also come with certain drawbacks
to consider. Over time, the metal edge of the crown can become visible near the gum line, which
can affect the overall aesthetics of the restoration. Additionally, the outer porcelain layer,
like in all-porcelain crowns, has the potential to wear down your other teeth or become damaged.
Zirconia Crowns
Popular choice for many dentists when crafting crowns. Similar to other metal crowns, zirconia is
highly durable. However, it's important to note that while zirconia offers excellent durability
and strength, it falls somewhat short in terms of aesthetics when compared to porcelain crowns.
Additionally, it may not be as gentle on the opposing teeth as certain metal alloys.
Procedure Overview
Once the most suitable type of crown has been determined for your needs, we will arrange two
appointments for the crown placement process. Here's what you can expect during these
appointments:
First Appointment:
- The dentist will start by assessing your tooth, removing any tooth decay, and performing
necessary fillings or root canals, if required.
- Then, they will trim down your tooth by removing a portion of its enamel to create a
suitable base for the crown. Local anesthesia will be administered to numb the tooth before
this process begins. The amount of enamel removed will vary depending on the type of crown
you have chosen, with metal crowns typically requiring the least reduction.
- An impression (mold) of your prepared tooth and surrounding teeth will be taken. This
involves gently pulling the gums away from the prepared tooth and having you bite down on
putty-filled trays for a few minutes. The impression will be sent to a dental lab, which
will craft a custom crown to match your damaged tooth and blend seamlessly with your natural
teeth. If you've chosen a ceramic, porcelain-fused-to-metal, or zirconia crown, the lab will
also ensure it matches the color of your other teeth.
- To safeguard your prepared tooth while you wait for the custom crown to be fabricated, a
temporary crown will be placed.
Second Appointment:
- Once the dental lab has completed your personalized crown, you will return for the second
appointment. The dentist will verify that the crown fits comfortably and securely.
- After confirming the proper fit, the crown will be permanently affixed to your tooth using a
bonding resin.
Dental crowns require the same level of care as natural teeth. Although the crown itself is
impervious to decay, the tooth beneath it can still be susceptible. Regular brushing and
flossing are essential to maintain the longevity of your crown. With proper care, a typical
crown can last anywhere from 10 to 50 years.